1 citations · 3 across the 6 of their papers we have counts for
6 papers
From Internal Collision to Photon Escape: First-Principles Modeling of Radiation-Mediated Shocks in Gamma-Ray Burst Photospheres
Jona Nordin Nobuoka, Filip Alamaa, Felix Ryde +1
Modeling subphotospheric shocks in a gamma-ray burst (GRB) is challenging due to the various timescales that must be resolved, and the fact that the same radiation dynamically medi…
Radiation-mediated shocks in gamma-ray bursts: spectral evolution
Filip Alamaa, Frédéric Daigne
Radiation-mediated shocks (RMSs) occurring below the photosphere in a gamma-ray burst (GRB) jet could play a crucial role in shaping the prompt emission. In this paper, we study th…
Photospheric emission from GRB 211211A altered by a strong radiation-mediated shock
Oscar Wistemar, Filip Alamaa, Felix Ryde
Gamma-ray burst (GRB) spectra are typically non-thermal, with many including two spectral breaks suggestive of optically-thin emission. However, the emitted spectrum from a GRB pho…
A generalized method to measure the Lorentz factor from gamma-ray burst photospheric emission
Oscar Wistemar, Felix Ryde, Filip Alamaa
The properties of gamma-ray bursts (GRBs) that are inferred from observations depend on the value of the bulk Lorentz factor, . Consequently, accurately estimating it is an impo…
Intrapulse spectral evolution in photospheric gamma-ray bursts
Filip Alamaa
Photons that decouple from a relativistic jet do so over a range of radii, which leads to a spreading in arrival times at the observer. Therefore, changes to the comoving photon di…
Ending the prompt phase in photospheric models of gamma-ray bursts
Filip Alamaa, Frédéric Daigne, Robert Mochkovitch
The early steep decay, a rapid decrease in X-ray flux as a function of time following the prompt emission, is a robust feature seen in almost all gamma-ray bursts with early enough…